Here's what I started with on my hardcore grinder:
451 Encrypted Data Chips
82 Rare Borg Salvage
50 Prototype Borg Salvage
3 Rare Borg Shield Tech
8 Rare Borg Engine Tech
2 Rare Borg Deflector Tech
2 Rare Borg Armor Tech
2 Rare Borg Weapon Tech

On Tribble this coverts to:
4000 Omega Marks
18 Borg Neuro Processors
16000 Dilithium Ore.

If I went to DS9 to turn it into Dilithium now I'd get... 267264 Dilithium ore.